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Microbiology: History, Koch's Postulates, and Microorganisms

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Microbiology: History, Koch's Postulates, and Microorganisms

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Questions and Answers

What is the definition of spontaneous generation?

The hypothesis that living organisms arise from non-living matter (correct)

The theory that all living things are composed of cells and come from preexisting cells

The alternative hypothesis that living organisms arise from preexisting life

The term used to refer to disease-causing microorganisms

Which of the following is NOT a way in which microorganisms are involved in our lives?

Causing diseases (correct)

Decomposing organic waste

Producing fermented foods like vinegar, cheese, and bread

Producing industrial chemicals like ethanol and acetone

What did knowledge of microorganisms lead to in terms of human practices?

Increased production of fermented foods

Prevention of disease occurrence only

Development of aseptic techniques to prevent contamination in medicine and microbiology laboratories (correct)

Use of microorganisms to produce drugs and pharmaceuticals

What does the cell theory propose?

All living things are composed of cells and come from preexisting cells Signup and view all the answers

Which hypothesis states that living organisms arise from preexisting life?

Biogenesis Signup and view all the answers

Who is credited with the first observation of microorganisms?

Antoni van Leeuwenhoek Signup and view all the answers

What did Louis Pasteur demonstrate about microorganisms in the air?

They can spoil food and cause animal diseases Signup and view all the answers

Who advocated hand washing to prevent transmission of puerperal fever?

Ignaz Semmelweis Signup and view all the answers

What did Edward Jenner inoculate a person with to provide protection from smallpox?

Cowpox virus Signup and view all the answers

Who proved that a bacterium causes anthrax and provided Koch's postulates?

Robert Koch Signup and view all the answers